Vocabulary:

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gemstone:a hard, colorful mineral that has a brilliant or glassy luster
ore: rock that contains a metal or economically useful mineral
smelting:the process of which the ore is melted to separate the useful from non-useful elements
alloy:a solid mixture of two or more metals

Outline

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• uses of minerals
  • gemstones
  • metals
  • other useful minerals
    • food
• ores
  • mineral in rock
• prospecting
  • study surrounding features
• mining
  • strip mines
  • open pit mines
  • shaft mines
• smelting
  • separates ores

Diagram

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These are gems, which are cut gemstones